we have with us national security chief correspondent jim sciutto. there's so many policies and cultures. it seems far away but it isn't. >> ukraine is in europe, kiev is miles away from rome, paris, london, that kind of thing and we have u.s. allies just to the west, poland, slovakia, hungary, romania. the u.s. is required to defend these countries militarily if they come under threat. >> crimea, appropriately colored red. why? >> because it has that pull toward russia. russia, right on the tip of russia, it's the headquarters of their black sea fleet, their on warm water port, all of the ports up here are cold, they don't have access to them in the winter. this is key. it's key when those thousands of russian troops moved into crimea, it where they went. >> people will remember this place throughout history. you had famous things happening here as part of its separation, we were talking earlier, florence nightingale. >> that's right, long ties between this part of the world and seems a million miles away in europe. >> the charge of the light brigad